Loss of One Sensing Element of the Exchanger Outlet Temperature-Sensor of the Engine 1

TASK 36-11-00-810-825-A
Loss of One Sensing Element of the Exchanger Outlet Temperature-Sensor of the Engine 1

1. Possible Causes

SENSOR-EXCHANGER OUT TEMP, ENG 1 [6HA1]
wiring between pin A/1 of the exchanger outlet temperature-sensor (6HA1) and th ground terminal
wiring from the exchanger outlet temperature-sensor (6HA1) to the BMC1 (1HA1)
BMC-1 [1HA1]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 361101
AMM 36-11-17-000-001	Removal of the Heat-Exchanger Outlet-Temperature Sensor
AMM 36-11-17-400-001	Installation of the Heat-Exchanger Outlet-Temperature Sensor
AMM 36-11-34-000-001	Removal of the BMC
AMM 36-11-34-400-001	Installation of the BMC

3. Fault Confirmation
Subtask 36-11-00-710-102-A ** ON A/C NOT FOR ALL

A. Test.
(1) Not applicable, the fault is evident.

4. Fault Isolation
Subtask 36-11-00-810-077-A ** ON A/C NOT FOR ALL

A. If the fault symptom is identified by the maintenance message:
TEMP SENSOR 6HA1

replace the SENSOR-EXCHANGER OUT TEMP, ENG 1 [6HA1] AMM 36-11-17-000-001 and AMM 36-11-17-400-001.

(1) If the fault continues:

do a check for ground at pin A/1 of the exchanger outlet temperature-sensor (6HA1).

(a) If there is no ground:

do a check and repair the wiring between pin A/1 of the exchanger outlet temperature-sensor (6HA1) and th ground terminal ASM 361101.

(b) If there is ground:

do a check and repair the wiring from the exchanger outlet temperature-sensor (6HA1) to the BMC1 (1HA1), pins A/2 and A/4 to pins AA/9B and AA/10B.

(2) If the fault continues:

Subtask 36-11-00-710-103-A ** ON A/C NOT FOR ALL

B. After the subsequent flight, make sure that the fault does not continue.

[Rev.8 from Aug 2018] 2026.04.04 04:33:42 UTC